Find a National Marine Conservation Area

Dolomite, 420 million years old, rises through the sparkling waters of Lake Huron to form Fathom Five National Marine Park. This is a freshwater ecosystem of ancient rock formations, cliff-edge forests, fascinating dive sites on 22 shipwrecks, and orchid species both plentiful and rare. Visit for a day or backcountry camp on starry-skied Flowerpot Island—Fathom Five is equal parts mystery and recreation, ecology and culture—and a welcoming escape to nature.

There’s a reason Lake Superior has been referred to as an inland ocean and you’ll discover that for yourself when you visit this immensely beautiful Great Lake. Called Gitchi Gummi or “The Big Lake” by the Anishinaabe and known for its furious storms, the Lake Superior National Marine Conservation Area will soon be recognized as one of the largest protected areas of fresh water in the world.